Normal　operation　causes　the　transformer　core,　winding,　and　cooling　device　to　vibrate,　which　in　turn　causes　the　vibration　of　the　transformer　body.　The　main　sources　of　vibration　include　core　vibration　caused　by　magnetic　hysteresis　of　silicon　steel　sheet　and　winding　caused　by　magnetic　leakage　of　load　current.　In　order　to　study　the　relation　between　the　electromagnetic　force　of　the　iron　core,　the　vibration　of　the　iron　core　and　the　vibration　of　the　transformer　body　surface,　the　finite　element　model　of　connecting　the　transformer　winding　and　the　electromagnetic　force　field　of　the　iron　core　was　established,　and　the　vibration　characteristics　of　the　transformer　core　were　simulated.　The　vibration　characteristics　of　the　oil　tank　in　different　directions　were　tested　by　the　acceleration　sensor,　and　the　vibration　transmission　process　was　discussed.　It　is　found　that　the　magnitude　and　direction　of　the　core　electromagnetic　force　have　obvious　correlation　with　the　vibration　of　the　fuel　tank.　©　2023　IEEE.